Strong pulsed-magnetic quadrupole lens for focusing high-energetic ion beams

The pulsed magnetic quadrupole lenses have been developed for focusing high energetic ion beams in accelerators. To operate stably, the quadrupole lenses were built in optimized steel- free structures. Up to now a flux density above 14 T has been reached in a quadrupole of 22 mm aperture. This value is high than the values reached in superconducting quadrupole lenses.